HarmanKardon-AVR137_230-avr-sm维修电路原理图.pdf

harman/kardon Service Manual AVR137/230 5 x 30W 5.1 CHANNEL A/V RECEIVER CONTENTS ESD WARNING.2 ELECTRICAL PARTS LIST.12 LEAKAGE TESTING.3 SEMICONDUCTOR PINOUTS.35 BASIC SPECIFICATIONS.4 PCB DRAWINGS.72 TROUBLESHOOTING GUIDE.5 BLOCK DIAGRAM.78 PROCESSOR RESET.5 WIRING DIAGRAM.79 PACKAGE LIST AND PARTS.6 AMP BIAS ADJUSTMENT.80 DISASSEMBLY.7 SCHEMATIC DIAGRAMS81 UNIT EXPLODED VIEW AND PARTS.11 Released EU2008 harman/kardon, Inc. Rev 0, 04/2008 250 Crossways Park Dr. Woodbury, New York, 11797 Page 1 of 87RadioFans.CN 收音机爱 好者资料库Eachprecautioninthismanualshouldbefollowedduringservicing.Components identified with the IEC symbolin the parts list are special significance to safety. When replacing a component identified with, use only the replacement parts designated, or parts with the same ratings or resistance, wattage, or voltage that are designated in theparts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptablyinsulated from the supply circuit before retuming the product to the customer.Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are calledElectrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors andsemiconductor chip components.The following techniques should be used to help reduce the incidence of component damage caused by static electricity.1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge onyour body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device,which should be removed for potential shock reasons prior to applying power to the unit under test.2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, toprevent electrostatic charge build-up or exposure of the assembly.3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.4. Use only an anti-static solder removal device. Some solder removal devices not classified as anti-static can generate electrical chargessufficient to damage ES devices.5. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES devices.6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacementES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.)7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to thechassis or circuit assembly into which the device will be installed.Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing togetheror your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices.CAUTION : harman/kardonAVR137/230 Service ManualPage 2 of 87RadioFans.CN 收音机爱 好者资料库SAFETY PRECAUTIONSThe following check should be performed for the continuedprotection of the customer and service technician.LEAKAGE CURRENT CHECKMeasure leakage current to a known earth ground (waterpipe, conduit, etc.) by connecting a leakage current testerbetween the earth ground and all exposed metal parts of theappliance (input/output terminals, screwheads, metaloverlays, control shaft, etc.). Plug the AC line cord of theappliance directly into a 120V AC 60Hz outlet and turn theAC power switch on. Any current measured must not exceedo.5mA.ANY MEASUREMENTS NOT WITHIN THE LIMITSOUTLINED ABOVE ARE INDICATIVE OF APOTENTIAL SHOCK HAZARD AND MUST BECORRECTED BEFORE RETURNING THE APPLIANCETO THE CUSTOMER.DeviceundertestTest allexposed metalsurfacesAlso test withplug reversed(Using AC adapterplug as required)AC Leakage TestLeakagecurrenttesterReading shouldnot be above0.5mAEarthgroundharman/kardonAVR137/230 Service ManualPage 3 of 87ENGLISHTECHNICAL SPECIFICATIONS 35Technical SpecificationsAudio SectionStereo Mode Continuous Average Power (FTC)40 Watts per channel, 20Hz20kHz, 0.07% THD, both channels driven into 8 ohmsFive-Channel Surround Modes Power Per Individual ChannelFront L&R channels:30 Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsCenter channel:30 Watts, 0.07% THD, 20Hz20kHz into 8 ohmsSurround channels:30 Watts per channel, 0.07% THD, 20Hz20kHz into 8 ohmsInput Sensitivity/Impedance Linear (High Level)200mV/47kohmsSignal-to-Noise Ratio (IHF-A)95dBSurround System Adjacent Channel Separation Analog Decoding 40dB (Pro Logic, etc.) Dolby Digital (AC-3)55dB DTS55dBFrequency Response 1W (+0dB, 3dB)10Hz100kHzHigh Instantaneous Current Capability (HCC)25 AmpsTransient Intermodulation Distortion (TIM)UnmeasurableRise Time16secSlew Rate40V/secFM Tuner SectionFrequency Range87.5108MHzUsable SensitivityIHF 1.3 V/13.2dBfSignal-to-Noise RatioMono/Stereo: 70/65dB (DIN)DistortionMono/Stereo: 0.15/0.3%Stereo Separation35dB 1kHzSelectivity400kHz: 70dBImage Rejection80dBIF Rejection90dBAM Tuner SectionFrequency Range5221620kHzSignal-to-Noise Ratio45dBUsable SensitivityLoop: 500VDistortion1kHz, 50% Mod: 0.8%Selectivity10kHz: 30dBVideo SectionVideo FormatPAL/NTSCInput Level/Impedance1Vp-p/75 ohmsOutput Level/Impedance 1Vp-p/75 ohmsVideo Frequency Response10Hz8MHz (3dB)GeneralPower RequirementAC 220-240V/50HzPower Consumption72W idle, 580W maximum (2 channels driven)Dimensions (Max)Width440mm Height165mm Depth382mmWeight9.6 kgDepth measurement includes knobs, buttons and terminal connections.Height measurement includes feet and chassis.All features and specifications are subject to change without notice.Harman Kardon is a registered trademark.*Manufactured under license from Dolby Laboratories.“Dolby”,“Pro Logic”, and the Double-D symbol are trademarks of Dolby Laboratories, Inc.Confidential Unpublished Works. 19921999 Dolby Laboratories, Inc.All rights reserved.DTS and DTS Neo:6 are registered trademarks of DTS, Inc. 96/24 is a trademark of DTS, Inc.Logic 7 is a registered trademark of Lexicon, Inc.32995_AVR137_ENG 16/05/07 12:29 Side 35harman/kardonAVR137/230 Service ManualPage 4 of 8734 TROUBLESHOOTING GUIDETroubleshooting GuideProcessor ResetIn the rare case where the units operation or thedisplays seem abnormal,the cause may involvethe erratic operation of the systems memory ormicroprocessor.To correct this problem, first unplug the unit fromthe AC wall outlet and wait at least threeminutes. After the pause, reconnect the ACpower cord and check the units operation. If thesystem still malfunctions, a system reset mayclear the problem.To clear the AVRs entire system memoryincluding tuner presets, output level settings,delay times and speaker configuration data, firstput the unit in Standby by pressing the SystemPower Control button 1. Next, press and holdthe Surround Mode Button 6for 5 seconds.The unit will turn on automatically.Note thatonce you have cleared the memory in this manner,it is necessary to re-establish all systemconfiguration settings and tuner presets.NOTE: Resetting the processor will erase anyconfiguration settings you have made forspeakers, output levels, surround modes, digitalinput assignments as well as the tuner presets.After a reset the unit will be returned to thefactory presets, and all settings for these itemsmust be reentered.If the system is still operating incorrectly, theremay have been an electronic discharge or severeAC line interference that has corrupted thememory or microprocessor.If these steps do not solve the problem, consultan authorized Harman Kardon service depot.SYMPTOMCAUSESOLUTIONUnit does not function when No AC Power Make certain AC power cord is plugged Main Power Switch ?is pushedinto a live outlet Check to see if outlet is switch controlledDisplay lights, but no sound Intermittent input connections Make certain that all input and speaker or pictureconnections are secure Mute is on Press Mute button ? Volume control is down Turn up volume controlSound is heard, but Front-Panel Display brightness is turned off Follow the instructions in the Display Brightness section Display does not light on page 27 so that the display is set to VFD FULLNo sound from any speaker; Amplifier is in protection mode Check speaker-wire connections for shorts at receiver light around Power switch1is reddue to possible shortand speaker ends Amplifier is in protection mode Contact your local Harman Kardon service depotdue to internal problemsNo sound from surround or Incorrect surround mode Select a mode other than Stereocenter speakers Incorrect configuration Check speaker mode Stereo or Mono program material With (analog or digital) Dolby surround modes, the surround decoder may not create rear-channel information from non-encoded programs Speakers not properly connected Check speaker-wire connections or use test toneto verify connections (see page 20)Unit does not respond to Weak batteries in remote Change remote batteriesremote commands Wrong device selected Press the AVR selector 5 Remote sensorEis obscured Make certain front-panel sensor is visible to remote or connect remote sensorIntermittent buzzing in tuner Local interference Move unit or antenna away from computers, fluorescent lights,motors or other electrical appliancesLetters flash in the Channel Indicator Digital audio feed paused Resume play for DVDDisplay ?and Digital Audio stops Check that Digital Signal is fed to the Digital Input selected32995_AVR137_ENG 16/05/07 12:29 Side 34harman/kardonAVR137/230 Service ManualPage 5 of 87NODE S C R I PTI ONPA R TS NO.Q , t y123451A C C E S S OR Y - 1BOX , OU T C A R TON5613DE S C R I PTI ONNOC PS 4A 564C Q X A V R 132/ 230C PG 1A 8 20T111Q , t yPA R TS NO.C PS 4A 565S NOW, PA D( R )411. 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Pa c k a g e Dr a wi n g711S NOW, PA D( L)S E TA V R 132/ 230S E T1FM 1 POL A NT( U L)C S A 1A 018 Z11NODE S C R I PTI ONPA R TS NO.Q , t y9101112131C PB1061YPOLY BA GC Q X 1A 1154XM A NU A L, I NS TR U C TI ONM A NU A L , S E TU P G U I DE11BOOK LE T, I NFOR M A TI ONC Q E 1A 18 0Z1S TA PLEC PL09053A C C E S S OR Y - 2A C C E S S OR Y - 1C PB1061YPOLY BA GC S A 1A 027ZA M LOOP A NTE NNA A S S Y1C A BR 03P3BA TTE R Y3C OV E R A S S YC G R A V R 130/ 230ZAPOLY BA G112723A M LOOP A NTE NNA A S S YBA TTE R Y A S S Y4FM 1 POLE A NT5C OV E R A S S Y6BOOK LE T, I NFOR M A TI ON9M A NU A L I NS TR U C TI ON10M A NU A L S E TU P C ODE1111C G R 1A 332M 7H43C Q E 1A 220ZC PS 1A 6761C PB1A 176Z112 345C G R 1A 331M 7H431PA D , C OV E RC OV E R AC OV E R BS HE E T, FR ONT C OV E RBA G , POLYA C C E S S OR Y - 2C Q X A V R 132/ 230C Q X 1A 1138 Y131I M A G E BR OC HU R E SHQ E 1A 273ZI M A G E BR OC HU R E SS TA PLEPOLY BA GA C C E S S OR Y - 11S NOW PA D ( R )3BOX , OU T C A R TON5S E T4S NOW PA D ( L)2A C C E S S OR Y - 26R E M OC ONTR A NS M I TTE R A S S Y26S TA PLE88S TA PLEC PL09053R E M OC ON A S S YC A R TA V R 132/ 2301harman/kardonAVR137/230 Service ManualPage 6 of 87AVR 137/2301211. Removing the Top Cabinet Remove the Screws546DISASSEMBLY13111079133128756894321 Remove the Screws2. Removing the Front Panel196347 Remove the Screws4. Removing the Main PCB125171318118 Remove the Screws1098147651516173. Removing the Rear PanelAVR137/23011432112harman/kardonAVR137/230 Service ManualPage 7 of 87DISASSEMBLY PROCEDURES for HK AVR 137 TOP-CABINET(21) REMOVAL 1. Remove 13 screws(S1,S7) and then remove the Top-cabinet. FRONT PANEL ASSY REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Disconnect the card cable between connector(CN72-17p) on the Fip PCB(37-1) and connector(CN72) on the Input PCB(39-1). 3. Disconnect the lead wire(BN81-8P) on the Fip PCB(37-1) from connector(CN81) on the Trans PCB(40-4). 4. Disconnect the lead wire(BN22-6P) on the Phone PCB(37-5) from connector(CN22) on the Input PCB(39-1). 5. Disconnect the lead wire(BN18-5P) on the Phone PCB(37-5) from connector(CN18) on the Input PCB(39-1) 6. Disconnect the lead wire(BN10-4P) on the Volume PCB(37-6) from connector(CN10) on the Input PCB(39-1) 7. Disconnect the lead wire(BN41-6P) on the Volume PCB(37-6) from connector(CN41) on the Video PCB(41) 8. Remove 1 screw(S10) and then lead wire(JW82-1P,JW83-1P) on the Phone PCB(37-5). 9 .Remove 1screw(S10) and then lead wire(JW84-1P) on the Volume PCB(37-3). 10. Remove 10 screws(S1) and then remove the Front Panel ASSY. Volume PCB(37-6) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Pull out the Volume Knob ASSY. 4. Disconnect connector(CN84) on the Volume PCB(37-6) from the lead wire(BN84-5P) on the Fip PCB(37-1). 5. Remove 8 screws(S2,S14), and then remove the Volume PCB(37-6). PHONE PCB(37-5) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Disconnect connector(CN85)on the Phone PCB(37-5) from the lead wire(BN85-2P) on the Fip PCB(37-1). 4. Remove 2 screws(S2) and then remove the Phone PCB(37-5). . POWER LED PCB(37-3) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Disconnect connector(CN88) on the Power Led PCB(37-3) from the lead wire(BN88-4P) on the Fip PCB(37-1) . 4. Remove 2 screws(S2) and then remove the Power led PCB(37-3). FIP PCB(37-1) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Remove the Front Panel ASSY, referring to the previous step. 3. Disconnect the lead wire(BN84-5P) on the Fip PCB(37-1) from connector(CN84) on the Volume PCB(37-6). 4. Disconnect the lead wire(BN85-2P) on the Fip PCB(37-1) from connector(CN85) on the Phone PCB(37-5). 5. Disconnect the lead wire(BN88-4P) on the Fip PCB(37-1) from connector(CN88) on the Power Led PCB(37-3). 6. Remove 3 screws(S2) and then remove the Guide PCB(37-8) & the Fip PCB(37-1). TUNER MODULE(42) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Disconnect the card cable between connector(CON1-13p) on the Tuner module(42) and connector(CN13) on the Input PCB(39-1). harman/kardonAVR137/230 Service ManualPage 8 of 873. Remove 2 screws(S8) and then remove the Tuner Module(42). VIDEO PCB(41) REMOVAL 1. Remove the Top-cabinet, referring to the previous step. 2. Disconnect the card cable between connector(BN14-13p) on the Video PCB(41) and connector(CN14) on the Input PCB(39-1). 3. Disconnect connector(CN43) on the Video PCB(41) from the lead wire(BN43-4P) on the Regulator PCB(A)(40-2). 4. Disconnect connector(CN41) on the Video PCB(41) from the lead wire(BN41-6P) on the Volume PCB(37-6). 5. Remove 6 screws(S8) and then remo